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In recent years, cases of receiving the report of non-delivery of letters.
Basically that's the error:
554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, p...
Good day! Tell me, please, is it possible to upgrade c360 immediately to the new version through the GUI, from 7.6.3-019 to 8.5.6?
Is there a recommended order for this upgrade?
Or is it strongly recommended to do this from the command line (CLI)?
I...
Good day!
When connecting via telnet just happens loss of communication with the host.Tell me,please, how to configure the listener correctly?telnet IP 25
Error reports began to come more recently like:
#5.0.0 smtp; 5.1.0 - Unknown address error 550-'Callback setup failed while verifying <address@domain.zone>\n(result of an earlier callout reused).\nThe initial connection, or a HELO or MAIL FROM:<> com...
Thank you.
The problem is solved. But for some reason the emails come twice. The first session aborts, second session takes place.
08 Jun 2016 12:42:59 (GMT +03:00)Protocol SMTP interface Data 1 (IP x.x.x.x) on incoming connection (ICID 1104099503) f...
Thank you for answer.
Tell me, please, is it possible to create a separate policy without the use of RAT (Recipient Access Table) ?
We have an external server that needs to send emails to different addresses, but they are rejected by RAT every time, ...
